<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="">
   <p>帐号：<input type="text" name="username"/></p>
   <p>密码：<input type="password" name="password"/></p>
   <p><input type="submit" value="登录"/></p>
</form>
  <a href="ShowUser">查看所有用户</a>
</body>
</html>